Ariel Ilan Roth is Executive Director of the Israel Institute. He previously served as Director of the Global Security Studies graduate program at Johns Hopkins University. He regularly teaches courses in military strategy and modern war for the Government program at Johns Hopkins, and his interests include Israeli strategic studies, U.S. foreign and defense policy and international relations theory. Ariel is an occasional commentator on foreign policy and security-related topics for both national and international newspapers. He is the author of Leadership in International Relations (2010), which examines the role of leaders in creating an effective balance of power, and articles in professional academic journals. He is a fellow at the Johns Hopkins Center for Advanced Governmental Studies and a veteran of the Israeli military. Ariel earned a B.A. from the Hebrew University and a Ph.D. from Johns Hopkins University.